effect of iron chelate on soybean performance in fields

Effect of Iron Chelate on Soybean Performance in Fields Prone to IDC • Evaluate the effect of an in-furrow application of Soygreen ® (iron chelate) in fields prone to iron deficiency chlorosis (IDC) on soybean health and yield. • Determine if an in-furrow application of Soygreen at planting helps mitigate IDC symptoms, allowing varieties with lower IDC tolerance to yield similarly to varieties with high IDC tolerance. Results Locations: 11 locations with a history of IDC in Nebraska and Kansas Plot Layout: Minimum 4 row width, 1000’ in length Replicates: One per location Factors: • Treatment: Soygreen Untreated • Variety IDC Tolerance: Tolerant Moderate Tolerance Low tolerance Application: In-furrow, at planting Rate: 3 lb/acre Pioneer ® Brand Soybean Varieties Used: (Varieties were selected to provide a range of tolerance to field IDC levels.) Nebraska Kansas IDC Tolerance 92Y70 (RR) 93Y93 (RR) Tolerant 93Y15 (RR) 93Y72 (RR) Moderate Tolerance 93Y13 (RR) 94Y01 (RR) Low Tolerance • In-furrow application of Soygreen at planting time showed a positive yield response across all varieties. • Although yield differences in some locations were minimal, visual differences were noted, as the varieties treated with an in-furrow application of Soygreen were greener and more robust. • In several plots, varieties treated with Soygreen in-furrow resulted in higher final populations than varieties not treated with Soygreen in high IDC fields. • Similar results were observed in a previous study conducted in 2008- 2009 in which the average yield advantage with Soygreen was 3.9 bu/acre. In this study, yield response tended to differ among varieties at sites with very high IDC levels. • Low yields at some locations due to drought stress likely influenced results in 2012. Study Description Objectives 2012 PIONEER ® brand products are provided subject to the terms and conditions of purchase which are part of the labeling and purchase documents. 2012 data are based on average of all comparisons made in 11 locations through November 21, 2012. Multi-year and multi-location is a better predictor of future performance. Do not use these or any other data from a limited number of trials as a significant factor in product selection. Product responses are variable and subject to a variety of environmental, disease, and pest pressures. Individual results may vary. All products are trademarks of their manufacturers. DuPont Pioneer Agronomy Sciences The DuPont Oval Logo is a registered trademark of DuPont. ® , TM , SM Trademarks and service marks of Pioneer. © 2012, PHII Soygreen plot near Fullerton, NE. Photo taken July 3, 2011. 49.0 46.7 44 45 46 47 48 49 50 Yield (bu/acre) Soygreen Trials 2012 Soygreen Untreated RR - Contains the Roundup Ready ® gene. Roundup Ready ® is a registered trademark used under license from Monsanto Company. • All treatments were applied according to label rates (3 lb/acre of Soygreen) and application carrier volumes (in-furrow 4-10 gallons/acre) Untreated Soygreen

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Page 1: Effect of Iron Chelate on Soybean Performance in Fields

Effect of Iron Chelate on Soybean Performance in Fields Prone to IDC

• Evaluate the effect of an in-furrow application of Soygreen® (iron chelate) in fields prone to iron deficiency chlorosis (IDC) on soybean health and yield.

• Determine if an in-furrow application of Soygreen at planting helps mitigate IDC symptoms, allowing varieties with lower IDC tolerance to yield similarly to varieties with high IDC tolerance.

Results

Locations: 11 locations with a history of IDC in Nebraska and Kansas

Plot Layout: Minimum 4 row width, 1000’ in length Replicates: One per location Factors: • Treatment: Soygreen

Untreated • Variety IDC Tolerance: Tolerant

Moderate Tolerance Low tolerance Application: In-furrow, at planting Rate: 3 lb/acre

Pioneer® Brand Soybean Varieties Used: (Varieties were selected to provide a range of tolerance to field IDC levels.)

Nebraska Kansas IDC Tolerance 92Y70 (RR) 93Y93 (RR) Tolerant 93Y15 (RR) 93Y72 (RR) Moderate Tolerance 93Y13 (RR) 94Y01 (RR) Low Tolerance

• In-furrow application of Soygreen at planting time showed a positive yield response across all varieties.

• Although yield differences in some locations were minimal, visual differences were noted, as the varieties treated with an in-furrow application of Soygreen were greener and more robust.

• In several plots, varieties treated with Soygreen in-furrow resulted in higher final populations than varieties not treated with Soygreen in high IDC fields.

• Similar results were observed in a previous study conducted in 2008-2009 in which the average yield advantage with Soygreen was 3.9 bu/acre. In this study, yield response tended to differ among varieties at sites with very high IDC levels.

• Low yields at some locations due to drought stress likely influenced results in 2012.

Study Description

Objectives

2012

PIONEER® brand products are provided subject to the terms and conditions of purchase which are part of the labeling and purchase documents. 2012 data are based on average of all comparisons made in 11 locations through November 21, 2012. Multi-year and multi-location is a better predictor of future performance. Do not use these or any other data from a limited number of trials as a significant factor in product selection. Product responses are variable and subject to a variety of environmental, disease, and pest pressures. Individual results may vary. All products are trademarks of their manufacturers.

Soygreen plot near Fullerton, NE. Photo taken July 3, 2011.

49.0

46.7

With SoyGreen Without SoyGreen

Yield

(bu/

acre

)

Soygreen Trials 2012

Soygreen Untreated

RR - Contains the Roundup Ready® gene. Roundup Ready® is a registered trademark used under license from Monsanto Company.

• All treatments were applied according to label rates (3 lb/acre of Soygreen) and application carrier volumes (in-furrow 4-10 gallons/acre)